1 line
80 B
Plaintext
1 line
80 B
Plaintext
Soient $A\in\M_{n,p}(\K)$, $B\in\M_{p,n}(\K)$. Montrer que $\tr(AB) = \tr (BA)$. |
Soient $A\in\M_{n,p}(\K)$, $B\in\M_{p,n}(\K)$. Montrer que $\tr(AB) = \tr (BA)$. |